<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=666446
-->
<head>
  <title>Test for WEBGL_debug_renderer_info chrome-only extension</title>
  <script type="application/javascript" src="chrome://mochikit/content/MochiKit/packed.js"></script>
  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css" />
</head>
<body>

<pre id="test">
<script>

const UNMASKED_VENDOR_WEBGL = 0x9245;
const UNMASKED_RENDERER_WEBGL = 0x9246;


var Cu = parent.Components.utils;
Cu.import("resource://gre/modules/AppConstants.jsm");
// This gives us `AppConstants` in the global scope.
// We need this because we only expose debug_renderer_info #ifndef RELEASE_OR_BETA.
// This should match AppConstants.RELEASE_OR_BETA.

const canBeUnprivileged = !AppConstants.RELEASE_OR_BETA;


function isNonEmptyString(s)
{
  return s && (typeof s) == "string";
}

function messageListener(e) {
  if (e.data.allTestsFinished) {
    SimpleTest.finish();
  } else if (e.data.subTestFinished) {
    ok(e.data.result, "content iframe: " + e.data.message);
  }
}

function checkChromeCase(canvas) {

  var gl = canvas.getContext("experimental-webgl");
  ok(!gl.getError(), "getError on newly created WebGL context should return NO_ERROR");

  ok(!gl.getParameter(UNMASKED_VENDOR_WEBGL) && gl.getError() == gl.INVALID_ENUM,
     "Should not be able to query UNMASKED_VENDOR_WEBGL without having enabled the WEBGL_debug_renderer_info extension");
  ok(!gl.getParameter(UNMASKED_RENDERER_WEBGL) && gl.getError() == gl.INVALID_ENUM,
     "Should not be able to query UNMASKED_RENDERER_WEBGL without having enabled the WEBGL_debug_renderer_info extension");

  var exts = gl.getSupportedExtensions();
  ok(exts.indexOf("WEBGL_debug_renderer_info") != -1,
     "WEBGL_debug_renderer_info should be listed by getSupportedExtensions in chrome contexts");
  var ext = gl.getExtension("WEBGL_debug_renderer_info");
  ok(ext,
     "WEBGL_debug_renderer_info should be available through getExtension in chrome contexts");

  ok(ext.UNMASKED_VENDOR_WEBGL == UNMASKED_VENDOR_WEBGL,
     "UNMASKED_VENDOR_WEBGL has the correct value");
  ok(ext.UNMASKED_RENDERER_WEBGL == UNMASKED_RENDERER_WEBGL,
     "UNMASKED_RENDERER_WEBGL has the correct value");

  ok(isNonEmptyString(gl.getParameter(UNMASKED_VENDOR_WEBGL)) && gl.getError() == gl.NO_ERROR,
     "Should be able to query UNMASKED_VENDOR_WEBGL in chrome context with WEBGL_debug_renderer_info enabled");
  ok(isNonEmptyString(gl.getParameter(UNMASKED_RENDERER_WEBGL)) && gl.getError() == gl.NO_ERROR,
     "Should be able to query UNMASKED_RENDERER_WEBGL in chrome context with WEBGL_debug_renderer_info enabled");
}

function main()
{
  SimpleTest.waitForExplicitFinish();

  checkChromeCase(document.createElement("canvas"));

  // Now run the non-chrome code to verify the security of this WebGL chrome-only extension.

  var iframe = document.createElement("iframe");
  iframe.src = "http://mochi.test:8888/chrome/dom/canvas/test/chrome/nonchrome_webgl_debug_renderer_info.html";

  iframe.onload = function () {

    // test that chrome can get WEBGL_debug_renderer_info on a canvas on the iframe...
    // this is useful to check in itself, and is also useful so the subsequent non-chrome test
    // will also test that doing so doesn't confuse our chrome-only check.
    checkChromeCase(iframe.contentDocument.createElement("canvas"));

    iframe.contentWindow.addEventListener("message", messageListener, false);
    iframe.contentWindow.postMessage({run: true,
                                      canBeUnprivileged: canBeUnprivileged},
                                     "*");
  };

  document.body.appendChild(iframe);
}

window.onload = main;
</script>
</pre>
</body>
</html>
